/*
 * Copyright (c) 2014 Jason Gillam
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.professionallyevil.co2.beautify;

import java.io.IOException;
import java.io.PushbackReader;
import java.util.ArrayList;
import java.util.List;

public abstract class Chunk {
    static char EOFChar = (char) -1;
    List<Chunk> children = new ArrayList<Chunk>();

    abstract void process(PushbackReader r) throws IOException;

    Chunk findChunk(char c, PushbackReader r) throws IOException {
        if (c == '{') {
            Block chunk = new Block("{", '}');
            chunk.process(r);
            return chunk;
        }

        return null;
    }

    void addChunk(Chunk chunk) {
        children.add(chunk);
    }

    public String toString() {
        StringBuilder buf = new StringBuilder();
        for (Chunk c : children) {
            buf.append(c.toString(0));
        }
        return buf.toString();
    }

    String toString(int indent) {
        StringBuilder buf = new StringBuilder();
        for (Chunk c : children) {
            buf.append(c.toString(indent));
        }
        return buf.toString();
    }
}
